Coating film wiping mechanism

Abstract

The utility model discloses a coating wiping mechanism which comprises a cloth releasing module, a cloth collecting module and a wiping block, wiping cloth is wound on the cloth releasing module, the wiping block and the cloth collecting module, and a wiping head which is in contact with a product to be wiped through the wiping cloth is arranged at the end of the wiping block. An air cylinder used for driving the wiping block to move in the vertical direction is arranged on one side of the wiping block, a piston rod is connected with the air cylinder of the wiping block, and the air cylinder is further used for keeping contact pressure between the wiping head and the product to be wiped when the wiping head on the wiping block makes contact with the product to be wiped. A pressure sensor used for sensing the contact pressure between the wiping head and the product to be wiped is arranged between a piston rod of the air cylinder and the wiping block. The wiping pressure between the wiping head and the to-be-wiped product can be monitored and adjusted in real time in the movable wiping process, and the balance and stability of the wiping pressure are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coating detection, in particular to a coating wiping mechanism. Background Art

[0002] Coated glass is coated with one or more layers of thin films of metal, alloy, or metal compound on the glass surface through processes such as vacuum coating, evaporation, sputtering, or spraying. This method alters the optical properties of the glass to meet specific requirements such as aesthetics, scratch resistance, fingerprint resistance, and blue light protection. It is widely used in electronics. In the field of electronic products, it is often used as a cover for electronic devices such as mobile phones, watches, tablets, and computers. During the production and processing of coated glass, appropriate quality inspections are required to ensure its production quality.

[0003] Currently, after spraying a liquid on the coating surface, a wiping tool is typically used to wipe the surface. The coating quality of the coated product is then tested by observing the different dispersion characteristics of the liquid in the qualified and defective coating areas. The wiping pressure of the wiping tool on the coating surface often affects the test results. Therefore, controlling the wiping pressure has become a technical issue that needs to be solved during the coating inspection process. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a coating wiping mechanism, which is convenient for real-time monitoring and adjustment of the wiping pressure between the wiping head and the product to be wiped during the moving wiping process, thereby improving the balance and stability of the wiping pressure.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a coating wiping mechanism, comprising: a cloth placing module, a cloth collecting module and a wiping block, a wiping cloth is wound around the cloth placing module, the wiping block and the cloth collecting module, a wiping head is provided at the end of the wiping block for contacting the product to be wiped through the wiping cloth, a cylinder is provided on one side of the wiping block for driving the wiping block to move in a vertical direction, the cylinder whose piston rod is connected to the wiping block is also used to maintain the contact pressure between the wiping head on the wiping block and the product to be wiped when the wiping head contacts the product to be wiped, and a pressure sensor for sensing the contact pressure between the wiping head and the product to be wiped is provided between the piston rod of the cylinder and the wiping block.

[0006] The further improved scheme in the above technical scheme is as follows:

[0007] 1. In the above solution, the wiping block further comprises a horizontal plate and a bent plate located at the end of the horizontal plate, and the wiping head is arranged on the end of the bent plate opposite to the horizontal plate.

[0008] 2. In the above solution, the end of the wiping block opposite to the wiping head is connected to a support plate, and the piston rod of the cylinder is connected to the support plate through a pressure sensor.

[0009] 3. In the above solution, the cylinder is mounted on a bracket, and the support plate movable in the vertical direction is connected to the bracket through at least one set of slide rails and sliders.

[0010] 4. In the above solution, the cloth placing module and the cloth collecting module are both installed on a supporting side plate, and the supporting side plate is connected to the supporting plate through a bracket.

[0011] 5. In the above solution, a plurality of guide rollers for rolling contact with the wiping cloth are provided between the cloth placing module and the wiping block, and between the wiping head and the cloth collecting module, and the guide rollers are installed on the supporting side plates.

[0012] 6. In the above solution, the supporting side plate is installed on a driving module.

[0013] 7. In the above scheme, the area of ​​the wiping block close to the wiping head is provided with a plurality of liquid outlets that contact the wiping cloth. In the direction of movement of the wiping cloth, the liquid outlets are located on the side of the wiping head close to the cloth placing module, and the liquid outlets are connected to the liquid flow channel provided in the wiping block.

[0014] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0015] The utility model discloses a coating wiping mechanism, in which one side of the wiping block is provided with a cylinder for driving the wiping block to move in the vertical direction, and the cylinder connected with the piston rod of the wiping block is also used to maintain the contact pressure between the wiping head on the wiping block and the product to be wiped when the wiping head contacts the product to be wiped, and a pressure sensor for sensing the contact pressure between the wiping head and the product to be wiped is provided between the piston rod of the cylinder and the wiping block, so as to facilitate real-time monitoring and adjustment of the wiping pressure between the wiping head and the product to be wiped during the moving wiping process, thereby improving the balance and stability of the wiping pressure, avoiding damage and position displacement of the wiping head and the product to be wiped due to excessive pressure, ensuring the wiping effect, and improving the consistency of the wiping effect during repeated wiping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attachment Figure 1 This is a schematic diagram of the overall structure of the coating wiping mechanism of the utility model;

[0017] Attachment Figure 2 This is a partial structural diagram of the coating wiping mechanism of the utility model from one perspective;

[0018] Attachment Figure 3This is a partial structural diagram of the coating wiping mechanism of the utility model from another perspective;

[0019] Attachment Figure 4 This is a schematic structural diagram of the wiping block in the coating wiping mechanism of the present invention.

[0020] In the above drawings: 100, product to be wiped; 1, wiping block; 101, horizontal plate; 102, bending plate; 2, wiping head; 3, liquid outlet; 4, liquid flow channel; 5, wiping cloth; 61, cloth placing module; 62, cloth collecting module; 63, guide roller; 7, supporting side plate; 81, first stopper; 82, second stopper; 9, cylinder; 10, pressure sensor; 11, support plate; 12, bracket; 131, slide rail; 132, slider. DETAILED DESCRIPTION

[0021] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0022] Example 1: A coating wiping mechanism comprises: a cloth placing module 61, a cloth collecting module 62 and a wiping block 1, a wiping cloth 5 is wound around the cloth placing module 61, the wiping block 1 and the cloth collecting module 62, a wiping head 2 is provided at the end of the wiping block 1 for contacting the product 100 to be wiped through the wiping cloth 5, a cylinder 9 is provided on one side of the wiping block 1 for driving the wiping block 1 to move in a vertical direction, the cylinder 9 whose piston rod is connected to the wiping block 1 is also used to maintain the contact pressure between the wiping head 2 on the wiping block 1 and the product 100 to be wiped when they are in contact, a pressure sensor 10 is provided between the piston rod of the cylinder 9 and the wiping block 1 for sensing the contact pressure between the wiping head 2 and the product 100 to be wiped.

[0023] The area of ​​the wiping block 1 near the wiping head 2 is provided with a plurality of liquid outlets 3 that are in contact with the wiping cloth 5. In the direction of movement of the wiping cloth 5, the liquid outlets 3 are located on the side of the wiping head 2 near the cloth placing module 61. The liquid outlets 3 are connected to the liquid flow channel 4 provided in the wiping block 1.

[0024] The angle between the bent plate 102 and the horizontal plate 101 of the wiping block 1 is greater than 90°, so that the angle between the wiping head and the product to be wiped in the direction of movement of the wiping head is less than 90°, thereby improving the smoothness of wiping while protecting the product to be wiped;

[0025] The wiping block 1 is provided with at least two first stops 81 spaced apart along the direction of movement of the wiping cloth 5 and at least two second stops 82 opposite to the first stops 81. The wiping cloth 5 is movably disposed between the first stops 81 and the second stops 82 to limit the position of the wiping cloth during its movement, thereby preventing the wiping cloth from deviating and causing interference and damage to the product during contact with the product.

[0026] The wiping head 2 is a silicone wiping head. Using a wiping head with a certain degree of flexibility can not only improve the uniformity of the wiping force, but also avoid damage to the wiped object due to excessive wiping force. The wiping cloth 5 is a non-woven fabric.

[0027] Example 2: A coating wiping mechanism, comprising: a cloth placing module 61, a cloth collecting module 62 and a wiping block 1, a wiping cloth 5 is wound around the cloth placing module 61, the wiping block 1 and the cloth collecting module 62, a wiping head 2 is provided at the end of the wiping block 1 for contacting the product 100 to be wiped through the wiping cloth 5, a cylinder 9 is provided on one side of the wiping block 1 for driving the wiping block 1 to move in the vertical direction, the cylinder 9 whose piston rod is connected to the wiping block 1 is also used to maintain the contact pressure between the wiping head 2 on the wiping block 1 and the product 100 to be wiped when they are in contact, a pressure sensor 10 is provided between the piston rod of the cylinder 9 and the wiping block 1 for sensing the contact pressure between the wiping head 2 and the product 100 to be wiped, according to the data fed back from the pressure sensor 10, the intake pressure can be adjusted by the pressure regulating valve of the cylinder, and then the contact pressure is adjusted.

[0028] The wiping block 1 further includes a horizontal plate 101 and a bent plate 102 located at the end of the horizontal plate 101, and the wiping head 2 is arranged on the end of the bent plate 102 opposite to the horizontal plate 101;

[0029] The end of the wiping block 1 opposite to the wiping head 2 is connected to a support plate 11, and the piston rod of the cylinder 9 is connected to the support plate 11 through a pressure sensor 10;

[0030] The cylinder 9 is mounted on a bracket 12, and the vertically movable support plate 11 and the bracket 12 are connected by at least one set of slide rails 131 and sliders 132;

[0031] The cloth placing module 61 and the cloth collecting module 62 are both mounted on a supporting side plate 7, which is connected to the supporting plate 11 via a bracket 12;

[0032] A plurality of guide rollers 63 are provided between the cloth placing module 61 and the wiping block 1, and between the wiping head 2 and the cloth collecting module 62, which are in rolling contact with the wiping cloth 5, so as to guide and reverse the wiping cloth 5. The guide rollers 63 are mounted on the supporting side plate 7;

[0033] The supporting side plate 7 is mounted on a driving module, and is used to drive the supporting side plate to drive the wiping head on the wiping block and the wiping cloth outside the wiping block to move from one end of the surface to be wiped on the product to be wiped to the other end;

[0034] The area of ​​the wiping block 1 near the wiping head 2 is provided with a plurality of liquid outlets 3 that are in contact with the wiping cloth 5. In the direction of movement of the wiping cloth 5, the liquid outlets 3 are located on the side of the wiping head 2 near the cloth placing module 61. The liquid outlets 3 are connected to the liquid flow channel 4 provided in the wiping block 1.

[0035] The wiping head 2 is a PEEK wiping head. Using a wiping head with a certain degree of flexibility can not only improve the uniformity of the wiping force, but also avoid damage to the wiped object due to excessive wiping force. The wiping cloth 5 is a dust-free cloth.

[0036] The working principle is:

[0037] Used to detect defects on the coated surface of glass products (such as the glass back panel of electronic products), where the coated surface is the surface to be wiped;

[0038] When in use, the rolled strip of wiping cloth is installed on the cloth placing module, and one end of the wiping cloth is passed around the wiping block and the wiping head in sequence and then installed on the cloth collecting module. The wiping cloth can be driven by the cloth collecting module to move from the cloth placing module to the cloth collecting module, so that during the movement, one side surface of the wiping cloth successively slides in contact with the liquid outlet area on the wiping block and the outer surface of the wiping head;

[0039] Liquid (such as alcohol) is injected into the liquid flow channel on the wiping block through a pipeline, and the liquid can overflow from the liquid outlet to soak the wiping cloth wrapped around the wiping block and outside the liquid outlet;

[0040] Loading the product to be wiped onto a movable carrier with the coated surface of the product to be wiped facing upward;

[0041] Before wiping, move the wiping cloth soaked in liquid on the outside of the liquid outlet a short distance to the outside of the wiping head;

[0042] When wiping, first move the wiping block to the top of one end of the coated surface of the product to be wiped, and then use the cylinder to drive the wiping block downward so that the wiping cloth wrapped around the outside of the wiping head contacts the coated surface of the product to be wiped;

[0043] Next, the wiping block is driven to move the wiping head and the wiping cloth outside it from one end of the coated surface of the product to be wiped to the other end, so that the detection liquid soaked on the wiping cloth is evenly and comprehensively coated on the coated surface of the product to be wiped;

[0044] The pressure sensor installed between the cylinder piston rod and the support plate that drives the wiping block up and down provides real-time feedback on the wiping pressure between the wiping head and the product to be wiped during the moving wiping process. This facilitates monitoring and adjustment of the wiping pressure, improves the uniformity and stability of the wiping pressure, and thus improves the accuracy and consistency of defect detection. Specifically:

[0045] It can avoid the situation where the scraper head is worn or tilted during repeated wiping due to excessive pressure, which reduces the wiping effect and affects the accuracy of subsequent detection;

[0046] The pressure can be adjusted reasonably to ensure that the pressure on the glass product to be inspected is controlled within a reasonable range to avoid damage, especially to avoid leaving scratches on the surface of the glass product and causing three appearance damages (scratches, crushing and bumps). This problem is extremely important in the quality management of industrial production.

[0047] According to the different parameters of the coated surface of the glass product to be inspected, such as material, color, hardness, etc., the pressure can be finely adjusted within a precise range to obtain the most reasonable wiping pressure range, so as to optimize the wiping effect of defects on the product surface.

[0048] When the above-mentioned coated wiping mechanism is used, it is convenient to monitor and adjust the wiping pressure between the wiping head and the product to be wiped in real time during the moving wiping process, thereby improving the balance and stability of the wiping pressure. It can avoid excessive pressure causing wear or tilting of the scraper head during repeated wiping, and can also reasonably adjust the pressure to ensure that the pressure on the glass product to be inspected is controlled within a reasonable range, thereby avoiding damage to the glass product or leaving wiping scars on the surface of the glass product, causing three damage problems. The pressure can also be finely adjusted within a precise range, so that the surface defects of the product after wiping with appropriate pressure are optimally displayed, thereby improving the detection accuracy.

[0049] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A coating wiping mechanism, comprising: A cloth placing module (61), a cloth collecting module (62) and a wiping block (1), characterized in that: a wiping cloth (5) is wound around the cloth placing module (61), the wiping block (1) and the cloth collecting module (62); a wiping head (2) is provided at the end of the wiping block (1) for contacting the product (100) to be wiped through the wiping cloth (5); a cylinder (9) is provided on one side of the wiping block (1) for driving the wiping block (1) to move in a vertical direction; the cylinder (9) whose piston rod is connected to the wiping block (1) is also used to maintain the contact pressure between the wiping head (2) on the wiping block (1) and the product (100) to be wiped when the wiping head (2) is in contact with the product (100); a pressure sensor (10) for sensing the contact pressure between the wiping head (2) and the product (100) to be wiped is provided between the piston rod of the cylinder (9) and the wiping block (1).

2. The coating wiping mechanism according to claim 1, characterized in that: The wiping block (1) further comprises a horizontal plate (101) and a bent plate (102) located at the end of the horizontal plate (101), and the wiping head (2) is arranged on the end of the bent plate (102) opposite to the horizontal plate (101).

3. The coating wiping mechanism according to claim 1 or 2, characterized in that: The end of the wiping block (1) opposite to the wiping head (2) is connected to a support plate (11), and the piston rod of the cylinder (9) is connected to the support plate (11) via a pressure sensor (10).

4. The coating wiping mechanism according to claim 3, characterized in that: The cylinder (9) is mounted on a bracket (12), and the support plate (11) movable in the vertical direction is connected to the bracket (12) through at least one set of slide rails (131) and sliders (132).

5. The coating wiping mechanism according to claim 4, characterized in that: The cloth placing module (61) and the cloth collecting module (62) are both mounted on a supporting side plate (7), and the supporting side plate (7) is connected to the supporting plate (11) via a bracket (12).

6. The coating wiping mechanism according to claim 5, characterized in that: A plurality of guide rollers (63) in rolling contact with the wiping cloth (5) are provided between the cloth placing module (61) and the wiping block (1), and between the wiping head (2) and the cloth collecting module (62). The guide rollers (63) are mounted on the supporting side plate (7).

7. The coating wiping mechanism according to claim 5, characterized in that: The supporting side plate (7) is mounted on a driving module.

8. The coating wiping mechanism according to any one of claims 4 to 7, characterized in that: A plurality of liquid outlet holes (3) in contact with the wiping cloth (5) are provided in the area of ​​the wiping block (1) close to the wiping head (2). The liquid outlet holes (3) are located on a side of the wiping head (2) close to the cloth placing module (61) in the direction of movement of the wiping cloth (5). The liquid outlet holes (3) are connected to a liquid flow channel (4) provided in the wiping block (1).

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